101439578697 has 32 divisors (see below), whose sum is σ = 144338205312. Its totient is φ = 63146962944.

The previous prime is 101439578677. The next prime is 101439578701. The reversal of 101439578697 is 796875934101.

It is not a de Polignac number, because 101439578697 - 2¹⁴ = 101439562313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101439578697.

It is not an unprimeable number, because it can be changed into a prime (101439578657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16716858 + ... + 16722924.

It is an arithmetic number, because the mean of its divisors is an integer number (4510568916).

Almost surely, 2^101439578697 is an apocalyptic number.

101439578697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

101439578697 is a deficient number, since it is larger than the sum of its proper divisors (42898626615).

101439578697 is a wasteful number, since it uses less digits than its factorization.

101439578697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8617.

The product of its (nonzero) digits is 11430720, while the sum is 60.

The spelling of 101439578697 in words is "one hundred one billion, four hundred thirty-nine million, five hundred seventy-eight thousand, six hundred ninety-seven".